GPT-5.6 Sol

Frontier GPT-5.6 model for complex professional work with the highest reasoning capabilities.

gpt-5.6-sol
STABLEGet StartedView uptime
1,050,000 context
Released July 9, 2026
Starting at $4.40/M input tokens
Starting at $22.00/M output tokens
Streaming
Vision
Tools
Reasoning
JSON Output
Structured JSON
Web Search
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All Providers for GPT-5.6 Sol

DigitSpace routes requests to the best providers that are able to handle your prompt size and parameters.

Context: 1.1M
Input
$4.4
/M tokens
Cache Read
$0.44
/M tokens
Output
$22
/M tokens
Cache Write 5m
$5
/M tokens
Cache Write 1h
$5
/M tokens
+ $0.010 per search
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Frequently asked questions

What is GPT-5.6 Sol?

Frontier GPT-5.6 model for complex professional work with the highest reasoning capabilities. You can access it through DigitSpace's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.

How much does GPT-5.6 Sol cost?

Pricing for GPT-5.6 Sol on DigitSpace starts at $4.40 per million input tokens and $22.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.

What is the context length of GPT-5.6 Sol?

GPT-5.6 Sol supports a context window of up to 1,050,000 tokens on its largest provider deployment.

Which providers serve GPT-5.6 Sol?

GPT-5.6 Sol is served by OpenAI through DigitSpace. Requests are automatically routed to the best available provider, with fallback when a provider has issues.

Does GPT-5.6 Sol support tool calling and structured outputs?

Yes. GPT-5.6 Sol supports both tool (function) calling and strict JSON output schema (upstream-enforced) through DigitSpace.

When was GPT-5.6 Sol released?

GPT-5.6 Sol was released on July 9, 2026.